This ILO code of practice contains sections on: general provisions; components of a major hazard control system; general duties; prerequisites for a major hazard control system; analysis of hazards and risks; control of the causes of major industrial accidents; safe operation of major hazard installations; emergency planning; installations; sitting and land-use planning; reporting to competent authorities; implementation of a major hazard control system. Annexes: use of consultancy services and publications on the control of major hazards.